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/crypto/heimdal/lib/com_err/compile_et.c

https://bitbucket.org/freebsd/freebsd-head/
C | 242 lines | 171 code | 39 blank | 32 comment | 21 complexity | bc14faeea9fcd08ced93f16c15483804 MD5 | raw file
  1/*
  2 * Copyright (c) 1998-2002 Kungliga Tekniska Hรถgskolan
  3 * (Royal Institute of Technology, Stockholm, Sweden).
  4 * All rights reserved.
  5 *
  6 * Redistribution and use in source and binary forms, with or without
  7 * modification, are permitted provided that the following conditions
  8 * are met:
  9 *
 10 * 1. Redistributions of source code must retain the above copyright
 11 *    notice, this list of conditions and the following disclaimer.
 12 *
 13 * 2. Redistributions in binary form must reproduce the above copyright
 14 *    notice, this list of conditions and the following disclaimer in the
 15 *    documentation and/or other materials provided with the distribution.
 16 *
 17 * 3. Neither the name of the Institute nor the names of its contributors
 18 *    may be used to endorse or promote products derived from this software
 19 *    without specific prior written permission.
 20 *
 21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 31 * SUCH DAMAGE.
 32 */
 33
 34#undef ROKEN_RENAME
 35
 36#include "config.h"
 37
 38#include "compile_et.h"
 39#include <getarg.h>
 40
 41#include <roken.h>
 42#include <err.h>
 43#include "parse.h"
 44
 45int numerror;
 46extern FILE *yyin;
 47
 48extern void yyparse(void);
 49
 50long base_id;
 51int number;
 52char *prefix;
 53char *id_str;
 54
 55char name[128];
 56char Basename[128];
 57
 58#ifdef YYDEBUG
 59extern int yydebug = 1;
 60#endif
 61
 62char *filename;
 63char hfn[128];
 64char cfn[128];
 65
 66struct error_code *codes = NULL;
 67
 68static int
 69generate_c(void)
 70{
 71    int n;
 72    struct error_code *ec;
 73
 74    FILE *c_file = fopen(cfn, "w");
 75    if(c_file == NULL)
 76	return 1;
 77
 78    fprintf(c_file, "/* Generated from %s */\n", filename);
 79    if(id_str)
 80	fprintf(c_file, "/* %s */\n", id_str);
 81    fprintf(c_file, "\n");
 82    fprintf(c_file, "#include <stddef.h>\n");
 83    fprintf(c_file, "#include <com_err.h>\n");
 84    fprintf(c_file, "#include \"%s\"\n", hfn);
 85    fprintf(c_file, "\n");
 86    fprintf(c_file, "#define N_(x) (x)\n");
 87    fprintf(c_file, "\n");
 88
 89    fprintf(c_file, "static const char *%s_error_strings[] = {\n", name);
 90
 91    for(ec = codes, n = 0; ec; ec = ec->next, n++) {
 92	while(n < ec->number) {
 93	    fprintf(c_file, "\t/* %03d */ \"Reserved %s error (%d)\",\n",
 94		    n, name, n);
 95	    n++;
 96
 97	}
 98	fprintf(c_file, "\t/* %03d */ N_(\"%s\"),\n",
 99		ec->number, ec->string);
100    }
101
102    fprintf(c_file, "\tNULL\n");
103    fprintf(c_file, "};\n");
104    fprintf(c_file, "\n");
105    fprintf(c_file, "#define num_errors %d\n", number);
106    fprintf(c_file, "\n");
107    fprintf(c_file,
108	    "void initialize_%s_error_table_r(struct et_list **list)\n",
109	    name);
110    fprintf(c_file, "{\n");
111    fprintf(c_file,
112	    "    initialize_error_table_r(list, %s_error_strings, "
113	    "num_errors, ERROR_TABLE_BASE_%s);\n", name, name);
114    fprintf(c_file, "}\n");
115    fprintf(c_file, "\n");
116    fprintf(c_file, "void initialize_%s_error_table(void)\n", name);
117    fprintf(c_file, "{\n");
118    fprintf(c_file,
119	    "    init_error_table(%s_error_strings, ERROR_TABLE_BASE_%s, "
120	    "num_errors);\n", name, name);
121    fprintf(c_file, "}\n");
122
123    fclose(c_file);
124    return 0;
125}
126
127static int
128generate_h(void)
129{
130    struct error_code *ec;
131    char fn[128];
132    FILE *h_file = fopen(hfn, "w");
133    char *p;
134
135    if(h_file == NULL)
136	return 1;
137
138    snprintf(fn, sizeof(fn), "__%s__", hfn);
139    for(p = fn; *p; p++)
140	if(!isalnum((unsigned char)*p))
141	    *p = '_';
142
143    fprintf(h_file, "/* Generated from %s */\n", filename);
144    if(id_str)
145	fprintf(h_file, "/* %s */\n", id_str);
146    fprintf(h_file, "\n");
147    fprintf(h_file, "#ifndef %s\n", fn);
148    fprintf(h_file, "#define %s\n", fn);
149    fprintf(h_file, "\n");
150    fprintf(h_file, "struct et_list;\n");
151    fprintf(h_file, "\n");
152    fprintf(h_file,
153	    "void initialize_%s_error_table_r(struct et_list **);\n",
154	    name);
155    fprintf(h_file, "\n");
156    fprintf(h_file, "void initialize_%s_error_table(void);\n", name);
157    fprintf(h_file, "#define init_%s_err_tbl initialize_%s_error_table\n",
158	    name, name);
159    fprintf(h_file, "\n");
160    fprintf(h_file, "typedef enum %s_error_number{\n", name);
161
162    for(ec = codes; ec; ec = ec->next) {
163	fprintf(h_file, "\t%s = %ld%s\n", ec->name, base_id + ec->number,
164		(ec->next != NULL) ? "," : "");
165    }
166
167    fprintf(h_file, "} %s_error_number;\n", name);
168    fprintf(h_file, "\n");
169    fprintf(h_file, "#define ERROR_TABLE_BASE_%s %ld\n", name, base_id);
170    fprintf(h_file, "\n");
171    fprintf(h_file, "#define COM_ERR_BINDDOMAIN_%s \"heim_com_err%ld\"\n", name, base_id);
172    fprintf(h_file, "\n");
173    fprintf(h_file, "#endif /* %s */\n", fn);
174
175
176    fclose(h_file);
177    return 0;
178}
179
180static int
181generate(void)
182{
183    return generate_c() || generate_h();
184}
185
186int version_flag;
187int help_flag;
188struct getargs args[] = {
189    { "version", 0, arg_flag, &version_flag },
190    { "help", 0, arg_flag, &help_flag }
191};
192int num_args = sizeof(args) / sizeof(args[0]);
193
194static void
195usage(int code)
196{
197    arg_printusage(args, num_args, NULL, "error-table");
198    exit(code);
199}
200
201int
202main(int argc, char **argv)
203{
204    char *p;
205    int optidx = 0;
206
207    setprogname(argv[0]);
208    if(getarg(args, num_args, argc, argv, &optidx))
209	usage(1);
210    if(help_flag)
211	usage(0);
212    if(version_flag) {
213	print_version(NULL);
214	exit(0);
215    }
216
217    if(optidx == argc)
218	usage(1);
219    filename = argv[optidx];
220    yyin = fopen(filename, "r");
221    if(yyin == NULL)
222	err(1, "%s", filename);
223
224
225    p = strrchr(filename, rk_PATH_DELIM);
226    if(p)
227	p++;
228    else
229	p = filename;
230    strlcpy(Basename, p, sizeof(Basename));
231
232    Basename[strcspn(Basename, ".")] = '\0';
233
234    snprintf(hfn, sizeof(hfn), "%s.h", Basename);
235    snprintf(cfn, sizeof(cfn), "%s.c", Basename);
236
237    yyparse();
238    if(numerror)
239	return 1;
240
241    return generate();
242}